395 lines
14 KiB
C
395 lines
14 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_COMMON_DATA_FORMAT_H_
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#define _TD_COMMON_DATA_FORMAT_H_
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#include "os.h"
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#include "talgo.h"
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#include "ttypes.h"
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#include "tutil.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Imported since 3.0 and use bitmap to demonstrate None/Null/Norm, while use Null/Norm below 3.0 without of bitmap.
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#define TD_SUPPORT_BITMAP
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#define TD_SUPPORT_READ2
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#define TD_SUPPORT_BACK2 // suppport back compatibility of 2.0
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#define TASSERT(x) ASSERT(x)
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#define STR_TO_VARSTR(x, str) \
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do { \
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VarDataLenT __len = (VarDataLenT)strlen(str); \
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*(VarDataLenT *)(x) = __len; \
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memcpy(varDataVal(x), (str), __len); \
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} while (0);
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#define STR_TO_NET_VARSTR(x, str) \
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do { \
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VarDataLenT __len = (VarDataLenT)strlen(str); \
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*(VarDataLenT *)(x) = htons(__len); \
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memcpy(varDataVal(x), (str), __len); \
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} while (0);
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#define STR_WITH_MAXSIZE_TO_VARSTR(x, str, _maxs) \
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do { \
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char *_e = stpncpy(varDataVal(x), (str), (_maxs)-VARSTR_HEADER_SIZE); \
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varDataSetLen(x, (_e - (x)-VARSTR_HEADER_SIZE)); \
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} while (0)
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#define STR_WITH_SIZE_TO_VARSTR(x, str, _size) \
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do { \
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*(VarDataLenT *)(x) = (VarDataLenT)(_size); \
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memcpy(varDataVal(x), (str), (_size)); \
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} while (0);
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// ----------------- TSDB COLUMN DEFINITION
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#pragma pack(push, 1)
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typedef struct {
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col_id_t colId; // column ID(start from PRIMARYKEY_TIMESTAMP_COL_ID(1))
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int8_t type; // column type
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int8_t flags; // flags: 0 no index, 1 SCHEMA_SMA_ON, 2 SCHEMA_IDX_ON
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int32_t bytes; // column bytes (0~16M)
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int32_t offset; // point offset in STpRow after the header part.
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} STColumn;
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#pragma pack(pop)
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#define colType(col) ((col)->type)
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#define colFlags(col) ((col)->flags)
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#define colColId(col) ((col)->colId)
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#define colBytes(col) ((col)->bytes)
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#define colOffset(col) ((col)->offset)
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#define colSetType(col, t) (colType(col) = (t))
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#define colSetFlags(col, f) (colFlags(col) = (f))
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#define colSetColId(col, id) (colColId(col) = (id))
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#define colSetBytes(col, b) (colBytes(col) = (b))
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#define colSetOffset(col, o) (colOffset(col) = (o))
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// ----------------- TSDB SCHEMA DEFINITION
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typedef struct {
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int32_t numOfCols; // Number of columns appended
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schema_ver_t version; // schema version
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uint16_t flen; // First part length in a STpRow after the header part
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int32_t vlen; // pure value part length, excluded the overhead (bytes only)
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int32_t tlen; // maximum length of a STpRow without the header part
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// (sizeof(VarDataOffsetT) + sizeof(VarDataLenT) + (bytes))
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STColumn columns[];
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} STSchema;
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#define schemaNCols(s) ((s)->numOfCols)
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#define schemaVersion(s) ((s)->version)
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#define schemaTLen(s) ((s)->tlen)
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#define schemaFLen(s) ((s)->flen)
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#define schemaVLen(s) ((s)->vlen)
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#define schemaColAt(s, i) ((s)->columns + i)
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#define tdFreeSchema(s) taosMemoryFreeClear((s))
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STSchema *tdDupSchema(const STSchema *pSchema);
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int32_t tdEncodeSchema(void **buf, STSchema *pSchema);
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void *tdDecodeSchema(void *buf, STSchema **pRSchema);
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static FORCE_INLINE int32_t comparColId(const void *key1, const void *key2) {
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if (*(int16_t *)key1 > ((STColumn *)key2)->colId) {
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return 1;
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} else if (*(int16_t *)key1 < ((STColumn *)key2)->colId) {
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return -1;
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} else {
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return 0;
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}
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}
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static FORCE_INLINE STColumn *tdGetColOfID(STSchema *pSchema, int16_t colId) {
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void *ptr = bsearch(&colId, (void *)pSchema->columns, schemaNCols(pSchema), sizeof(STColumn), comparColId);
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if (ptr == NULL) return NULL;
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return (STColumn *)ptr;
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}
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// ----------------- SCHEMA BUILDER DEFINITION
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typedef struct {
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int32_t tCols;
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int32_t nCols;
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schema_ver_t version;
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uint16_t flen;
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int32_t vlen;
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int32_t tlen;
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STColumn *columns;
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} STSchemaBuilder;
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// use 2 bits for bitmap(default: STSRow/sub block)
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#define TD_VTYPE_BITS 2
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#define TD_VTYPE_PARTS 4 // PARTITIONS: 1 byte / 2 bits
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#define TD_VTYPE_OPTR 3 // OPERATOR: 4 - 1, utilize to get remainder
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#define TD_BITMAP_BYTES(cnt) (((cnt) + TD_VTYPE_OPTR) >> 2)
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// use 1 bit for bitmap(super block)
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#define TD_VTYPE_BITS_I 1
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#define TD_VTYPE_PARTS_I 8 // PARTITIONS: 1 byte / 1 bit
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#define TD_VTYPE_OPTR_I 7 // OPERATOR: 8 - 1, utilize to get remainder
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#define TD_BITMAP_BYTES_I(cnt) (((cnt) + TD_VTYPE_OPTR_I) >> 3)
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int32_t tdInitTSchemaBuilder(STSchemaBuilder *pBuilder, schema_ver_t version);
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void tdDestroyTSchemaBuilder(STSchemaBuilder *pBuilder);
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void tdResetTSchemaBuilder(STSchemaBuilder *pBuilder, schema_ver_t version);
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int32_t tdAddColToSchema(STSchemaBuilder *pBuilder, int8_t type, int8_t flags, col_id_t colId, col_bytes_t bytes);
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STSchema *tdGetSchemaFromBuilder(STSchemaBuilder *pBuilder);
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// ----------------- Semantic timestamp key definition
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// typedef uint64_t TKEY;
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#define TKEY TSKEY
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#define TKEY_INVALID UINT64_MAX
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#define TKEY_NULL TKEY_INVALID
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#define TKEY_NEGATIVE_FLAG (((TKEY)1) << 63)
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#define TKEY_VALUE_FILTER (~(TKEY_NEGATIVE_FLAG))
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#define TKEY_IS_NEGATIVE(tkey) (((tkey)&TKEY_NEGATIVE_FLAG) != 0)
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#define TKEY_IS_DELETED(tkey) (false)
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#define tdGetTKEY(key) (key)
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#define tdGetKey(tskey) (tskey)
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#define MIN_TS_KEY ((TSKEY)0x8000000000000001)
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#define MAX_TS_KEY ((TSKEY)0x7fffffffffffffff)
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#define TD_TO_TKEY(key) tdGetTKEY(((key) < MIN_TS_KEY) ? MIN_TS_KEY : (((key) > MAX_TS_KEY) ? MAX_TS_KEY : key))
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static FORCE_INLINE TKEY keyToTkey(TSKEY key) {
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TSKEY lkey = key;
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if (key > MAX_TS_KEY) {
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lkey = MAX_TS_KEY;
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} else if (key < MIN_TS_KEY) {
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lkey = MIN_TS_KEY;
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}
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return tdGetTKEY(lkey);
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}
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static FORCE_INLINE int32_t tkeyComparFn(const void *tkey1, const void *tkey2) {
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TSKEY key1 = tdGetKey(*(TKEY *)tkey1);
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TSKEY key2 = tdGetKey(*(TKEY *)tkey2);
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if (key1 < key2) {
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return -1;
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} else if (key1 > key2) {
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return 1;
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} else {
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return 0;
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}
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}
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// ----------------- Data column structure
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// SDataCol arrangement: data => bitmap => dataOffset
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typedef struct SDataCol {
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int8_t type; // column type
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uint8_t bitmap : 1; // 0: no bitmap if all rows are NORM, 1: has bitmap if has NULL/NORM rows
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uint8_t reserve : 7;
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int16_t colId; // column ID
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int32_t bytes; // column data bytes defined
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int32_t offset; // data offset in a SDataRow (including the header size)
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int32_t spaceSize; // Total space size for this column
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int32_t len; // column data length
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VarDataOffsetT *dataOff; // For binary and nchar data, the offset in the data column
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void *pData; // Actual data pointer
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void *pBitmap; // Bitmap pointer
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TSKEY ts; // only used in last NULL column
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} SDataCol;
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#define isAllRowsNull(pCol) ((pCol)->len == 0)
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#define isAllRowsNone(pCol) ((pCol)->len == 0)
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static FORCE_INLINE void dataColReset(SDataCol *pDataCol) { pDataCol->len = 0; }
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int32_t tdAllocMemForCol(SDataCol *pCol, int32_t maxPoints);
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void dataColInit(SDataCol *pDataCol, STColumn *pCol, int32_t maxPoints);
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int32_t dataColAppendVal(SDataCol *pCol, const void *value, int32_t numOfRows, int32_t maxPoints);
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void *dataColSetOffset(SDataCol *pCol, int32_t nEle);
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bool isNEleNull(SDataCol *pCol, int32_t nEle);
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typedef struct {
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col_id_t maxCols; // max number of columns
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col_id_t numOfCols; // Total number of cols
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int32_t maxPoints; // max number of points
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int32_t numOfRows;
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int32_t bitmapMode : 1; // default is 0(2 bits), otherwise 1(1 bit)
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int32_t sversion : 31; // TODO: set sversion(not used yet)
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SDataCol *cols;
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} SDataCols;
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static FORCE_INLINE bool tdDataColsIsBitmapI(SDataCols *pCols) { return pCols->bitmapMode != 0; }
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static FORCE_INLINE void tdDataColsSetBitmapI(SDataCols *pCols) { pCols->bitmapMode = 1; }
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#define keyCol(pCols) (&((pCols)->cols[0])) // Key column
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#define dataColsTKeyAt(pCols, idx) ((TKEY *)(keyCol(pCols)->pData))[(idx)] // the idx row of column-wised data
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#define dataColsKeyAt(pCols, idx) tdGetKey(dataColsTKeyAt(pCols, idx))
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static FORCE_INLINE TKEY dataColsTKeyFirst(SDataCols *pCols) {
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if (pCols->numOfRows) {
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return dataColsTKeyAt(pCols, 0);
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} else {
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return TKEY_INVALID;
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}
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}
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static FORCE_INLINE TSKEY dataColsKeyAtRow(SDataCols *pCols, int32_t row) {
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assert(row < pCols->numOfRows);
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return dataColsKeyAt(pCols, row);
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}
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static FORCE_INLINE TSKEY dataColsKeyFirst(SDataCols *pCols) {
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if (pCols->numOfRows) {
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return dataColsKeyAt(pCols, 0);
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} else {
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return TSDB_DATA_TIMESTAMP_NULL;
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}
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}
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static FORCE_INLINE TKEY dataColsTKeyLast(SDataCols *pCols) {
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if (pCols->numOfRows) {
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return dataColsTKeyAt(pCols, pCols->numOfRows - 1);
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} else {
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return TKEY_INVALID;
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}
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}
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static FORCE_INLINE TSKEY dataColsKeyLast(SDataCols *pCols) {
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if (pCols->numOfRows) {
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return dataColsKeyAt(pCols, pCols->numOfRows - 1);
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} else {
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return TSDB_DATA_TIMESTAMP_NULL;
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}
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}
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SDataCols *tdNewDataCols(int32_t maxCols, int32_t maxRows);
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void tdResetDataCols(SDataCols *pCols);
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int32_t tdInitDataCols(SDataCols *pCols, STSchema *pSchema);
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SDataCols *tdDupDataCols(SDataCols *pCols, bool keepData);
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SDataCols *tdFreeDataCols(SDataCols *pCols);
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int32_t tdMergeDataCols(SDataCols *target, SDataCols *source, int32_t rowsToMerge, int32_t *pOffset, bool update,
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TDRowVerT maxVer);
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// ----------------- K-V data row structure
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/* |<-------------------------------------- len -------------------------------------------->|
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* |<----- header ----->|<--------------------------- body -------------------------------->|
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* +----------+----------+---------------------------------+---------------------------------+
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* | uint16_t | int16_t | | |
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* +----------+----------+---------------------------------+---------------------------------+
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* | len | ncols | cols index | data part |
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* +----------+----------+---------------------------------+---------------------------------+
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*/
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typedef void *SKVRow;
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typedef struct {
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int16_t colId;
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uint16_t offset;
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} SColIdx;
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#define TD_KV_ROW_HEAD_SIZE (sizeof(uint16_t) + sizeof(int16_t))
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#define kvRowLen(r) (*(uint16_t *)(r))
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#define kvRowNCols(r) (*(int16_t *)POINTER_SHIFT(r, sizeof(uint16_t)))
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#define kvRowSetLen(r, len) kvRowLen(r) = (len)
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#define kvRowSetNCols(r, n) kvRowNCols(r) = (n)
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#define kvRowColIdx(r) (SColIdx *)POINTER_SHIFT(r, TD_KV_ROW_HEAD_SIZE)
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#define kvRowValues(r) POINTER_SHIFT(r, TD_KV_ROW_HEAD_SIZE + sizeof(SColIdx) * kvRowNCols(r))
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#define kvRowCpy(dst, r) memcpy((dst), (r), kvRowLen(r))
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#define kvRowColVal(r, colIdx) POINTER_SHIFT(kvRowValues(r), (colIdx)->offset)
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#define kvRowColIdxAt(r, i) (kvRowColIdx(r) + (i))
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#define kvRowFree(r) taosMemoryFreeClear(r)
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#define kvRowEnd(r) POINTER_SHIFT(r, kvRowLen(r))
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#define kvRowValLen(r) (kvRowLen(r) - TD_KV_ROW_HEAD_SIZE - sizeof(SColIdx) * kvRowNCols(r))
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#define kvRowTKey(r) (*(TKEY *)(kvRowValues(r)))
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#define kvRowKey(r) tdGetKey(kvRowTKey(r))
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#define kvRowKeys(r) POINTER_SHIFT(r, *(uint16_t *)POINTER_SHIFT(r, TD_KV_ROW_HEAD_SIZE + sizeof(int16_t)))
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#define kvRowDeleted(r) TKEY_IS_DELETED(kvRowTKey(r))
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SKVRow tdKVRowDup(SKVRow row);
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int32_t tdSetKVRowDataOfCol(SKVRow *orow, int16_t colId, int8_t type, void *value);
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int32_t tdEncodeKVRow(void **buf, SKVRow row);
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void *tdDecodeKVRow(void *buf, SKVRow *row);
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void tdSortKVRowByColIdx(SKVRow row);
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static FORCE_INLINE int32_t comparTagId(const void *key1, const void *key2) {
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if (*(int16_t *)key1 > ((SColIdx *)key2)->colId) {
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return 1;
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} else if (*(int16_t *)key1 < ((SColIdx *)key2)->colId) {
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return -1;
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} else {
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return 0;
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}
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}
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static FORCE_INLINE void *tdGetKVRowValOfCol(SKVRow row, int16_t colId) {
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void *ret = taosbsearch(&colId, kvRowColIdx(row), kvRowNCols(row), sizeof(SColIdx), comparTagId, TD_EQ);
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if (ret == NULL) return NULL;
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return kvRowColVal(row, (SColIdx *)ret);
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}
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static FORCE_INLINE void *tdGetKVRowIdxOfCol(SKVRow row, int16_t colId) {
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return taosbsearch(&colId, kvRowColIdx(row), kvRowNCols(row), sizeof(SColIdx), comparTagId, TD_EQ);
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}
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// ----------------- K-V data row builder
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typedef struct {
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int16_t tCols;
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int16_t nCols;
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SColIdx *pColIdx;
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uint16_t alloc;
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uint16_t size;
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void *buf;
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} SKVRowBuilder;
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int32_t tdInitKVRowBuilder(SKVRowBuilder *pBuilder);
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void tdDestroyKVRowBuilder(SKVRowBuilder *pBuilder);
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void tdResetKVRowBuilder(SKVRowBuilder *pBuilder);
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SKVRow tdGetKVRowFromBuilder(SKVRowBuilder *pBuilder);
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static FORCE_INLINE int32_t tdAddColToKVRow(SKVRowBuilder *pBuilder, col_id_t colId, const void *value, int32_t tlen) {
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if (pBuilder->nCols >= pBuilder->tCols) {
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pBuilder->tCols *= 2;
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SColIdx *pColIdx = (SColIdx *)taosMemoryRealloc((void *)(pBuilder->pColIdx), sizeof(SColIdx) * pBuilder->tCols);
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if (pColIdx == NULL) return -1;
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pBuilder->pColIdx = pColIdx;
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}
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pBuilder->pColIdx[pBuilder->nCols].colId = colId;
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pBuilder->pColIdx[pBuilder->nCols].offset = pBuilder->size;
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pBuilder->nCols++;
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if (tlen > pBuilder->alloc - pBuilder->size) {
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while (tlen > pBuilder->alloc - pBuilder->size) {
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pBuilder->alloc *= 2;
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}
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void *buf = taosMemoryRealloc(pBuilder->buf, pBuilder->alloc);
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if (buf == NULL) return -1;
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pBuilder->buf = buf;
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}
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memcpy(POINTER_SHIFT(pBuilder->buf, pBuilder->size), value, tlen);
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pBuilder->size += tlen;
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_COMMON_DATA_FORMAT_H_*/
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